In the book, most of the stepmothers are cannon fodder with disgusting faces. Liu Chan doesn't care, she has the final say in her life, and she can still live a happy life.
World 1: The step-sister who married into a high family x the husband who truly loves the first wife
You love yours, and I use my strength to hit it off, just right.
World 2: The step-sister who takes care of the children x the prim and serious husband
It's okay. If you give me face, I will naturally do what I need to do well. It's mutually beneficial.
World 3: The step-sister who marries her brother-in-law x the husband who is obsessed with power and gain
Very good, the backyard is quiet and I can take care of my sister's bloodline, so my life is worry-free.
Concept: Love is not the only thing in life